AA 125 then UA 4645 at O'Hare
Madrid → Chicago → Fort Wayne
Timetable, Chicago time
15:05AA 125 from Madrid at the gate
11:25UA 4645 to Fort Wayne leaves the gate
20 h 20 apart on the timetable, overnight
UA 4645 leaves 20 h 20 after AA 125 arrives on the timetable: more than half a day, so not a connection we count.